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Inorganic mildew-proof coating

A mildew-proof and coating technology, applied in the direction of anti-fouling/underwater coatings, coatings, paints containing biocide, etc., can solve the problems of poor heat resistance, inability to achieve durable antibacterial, short duration, etc., to achieve improved dispersion effect, the effect of inhibiting the growth of mold and improving the stability

Inactive Publication Date: 2021-06-11
江苏旌翔建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Natural antifungal agents are safe and environmentally friendly, but have poor heat resistance, are easily decomposed by heat, and have a short duration of antifungal efficacy; inorganic antifungal agents are broad-spectrum antifungal agents with low cost and are suitable for large-scale use, but Inorganic antifungal agents will gradually wear out the metal antifungal active ingredients with the passage of time, resulting in a decline in the antifungal effect, unable to achieve a durable antibacterial effect; organic antifungal agents act quickly and have good antibacterial and antifungal effects, but There are also defects of poor heat resistance and certain toxicity
[0004] In view of the related technologies mentioned above, the inventor believes that simply adding an antifungal agent to improve the antibacterial and antifungal effect of the coating has limited effect, and it is necessary to improve the antifungal performance of the coating itself

Method used

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  • Inorganic mildew-proof coating
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  • Inorganic mildew-proof coating

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0039] A slow-release antifungal agent, 30kg of composite antifungal metal and 30kg of mesoporous silica with a particle size of 50nm are added to a ball mill, and wet milled with deionized water for 2 hours to obtain a mixed mill wet material; then the mixed mill wet The material is heated at 90°C for 1-2h to dry; then the dried abrasive is preliminarily dispersed through a disperser until the dispersed material has no agglomeration or agglomeration; then the obtained dispersed material is calcined at 500°C 4-8h, get the sintered material of slow-release anti-mold agent, disperse the sintered material of slow-release anti-mold agent in the disperser, finally obtain the powder of slow-release anti-mold agent, control the particle size of the slow-release anti-mold agent powder to be 70- 100 nm; the composite antifungal metal includes nano-silver, nano-copper, and nano-zinc oxide with a mass ratio of 0.2:0.2:0.3.

[0040] Divide the slow-release antifungal agent powder obtained...

preparation example 2-5

[0042] Preparation Examples 2-5 are based on Preparation Example 1, and differ from Preparation Example 1 only in that the mass ratios of the components of the composite antifungal metal are different, see Table 1 for details.

[0043] The mass ratio of each component of table 1 preparation example 2-5 composite mildew-resistant metal

[0044]

preparation example 6

[0046] Preparation Example 6 is based on Preparation Example 3, and differs from Preparation Example 3 in that: 40 kg of composite antifungal metal, 40 kg of mesoporous silica, 60 kg of water-soluble polyurethane solvent, and 4 kg of dispersant.

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Abstract

The invention relates to an inorganic mildew-proof coating. The coating is prepared from the following raw materials in parts by weight: 100-180 parts of nano silicate, 35-60 parts of titanium dioxide, 3-8 parts of nano titanium dioxide, 10-18 parts of fumed silica, 3-8 parts of diatomite, 3-12 parts of a slow-release mildew preventive and 100-150 parts of deionized water. The slow-release mildew preventive comprises the following components: 30-50 parts of composite mildew-proof metal, 30-50 parts of mesoporous silica, 50-80 parts of a solvent and 3-5 parts of a dispersant. The composite mildew-proof metal comprises nano-silver, nano-copper and nano-zinc oxide according to the mass ratio of (0.3-1):(0.3-1):(0.5-0.8). The mildew-proof coating has the advantages of improving the mildew-proof performance of the coating and prolonging the mildew-proof durability of the coating.

Description

technical field [0001] The present application relates to the technical field of paint preparation, in particular to an inorganic anti-mildew paint. Background technique [0002] Coatings have been widely used in construction, industry and other fields, especially in latex paints, because they contain cellulose derivatives, these components are easy to become a source of nutrition for microorganisms, and when the temperature and humidity are suitable, it will cause a large number of The growth of microorganisms, especially mold, will cause the paint to deteriorate and the viscosity to decrease. In order to improve the anti-mold performance of coatings, anti-mold agents are usually added to the coatings to inhibit the growth of mold and achieve the effect of anti-mold. [0003] At present, the antibacterial and antifungal properties of organic coatings are mainly improved by adding antifungal agents, mainly including natural antifungal agents, inorganic antifungal agents and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/14C09D7/61C09D7/65
CPCC09D1/00C09D5/14C09D7/61C09D7/65C09D7/70
Inventor 黄志翔陶江伟刘同余陈小安
Owner 江苏旌翔建材科技有限公司